Pentax SMC DA* Series 50-135mm f/2.8 ED IF SDM Normal to Telephoto Zoom Lens

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Ideal for Telephoto Applications of Portraiture, Sports and Scenery

Pentax SMC DA* Series 50-135mm f/2.8 ED IF SDM LensThe Pentax SMCP-DA* 50-135mm f/2.8 ED (IF) SDM Autofocus Lens is a high-quality telephoto zoom lens that is designed for exclusive use with Pentax digital SLR cameras. It offers a focal length that is equivalent (in 35mm format) from 75mm to 202mm. This wide coverage is ideal for a variety of telephoto applications, including portraiture, sports and scenery.

The image circle in DA-series lenses is designed to perfectly match the 23.5mm x 15.7mm size of the CCD used in Pentax digital SLRs to optimize camera performance.(*) This design also contributes to a drastic reduction in size, weight and production cost, compared to 35mm-format counterparts with similar specifications.

Pentax DA* (DA-Star) zoom lenses come equipped with the SDM System, which assures smoother, quieter auto-focusing operation by using a built-in supersonic motor. When mounted on the K10D digital SLR camera body, the focus mode is automatically switched to SDM-assisted auto-focusing. When mounted on older Pentax digital SLR camera bodies, the conventional autofocus mode using a camera-mounted motor is selected.

Like all Pentax lenses, this lens is treated with smc coating for maximum light transmission, sharp definition, and high contrast images. In addition, SP (Super Protective) coating made of a special fluoride compound has been applied to the front surface of the lens through the use of a unique evaporation process. As a result, the lens offers excellent water- and oil-repellent performance and makes for easier cleaning should the lens be accidentally smeared with fingerprints or cosmetics.

Note! (*)Only compatible with Digital SLR cameras 

Features

Incorporates 3 Extra-low Dispersion (ED) glass lens elements to compensate for chromatic aberration.

DA*-series lenses feature tightly sealed, weather-resistant and dust-resistant construction that enhance durability for use in rain or dusty conditions.

Quick-Shift Focus System allows to instantly switch the focus mode from AF to manual with a slight twist of the focus ring.

SP (Super Protective) coating made of a special fluoride compound has been applied to the front surface of the lens to offer excellent water- and oil-repellent performance

Incorporates a metallic lens mount for extra durability

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Specifications
Overview
Lens styleZoom lens  
Max Format Size APS-C / DX  
Lens focal length50 135 mm  
Stabilization type No  
Camera mount Pentax KAF2  
Angle of view 31.5 - 11.9 (used with digital SLR)  
Aperture
Largest aperture opening F2.8  
Smallest aperture opening F22.0  
Total diaphragm blades 9  
Optics
Total Elements 18  
Number of Groups 14  
Focusing
Minimum focus distance 1.00 m (39.37")  
Maximum magnification ratio 0.17 x  
Autofocus type Yes  
Full time manual focus Unknown  
Focusing method Internal  
Lens distance scale Yes  
Depth of field scale Yes  
Physical
Overall weight685 g (1.51 lb)  
Lens diameter 77 mm (3.03")  
Overall length 136 mm (5.35")  
Sealing Yes  
Color Black  
Zooming method Rotary (extending)  
Filter thread size 67 mm  
Lens hood included Yes  
Tripod collar included No

Lens Includes
Pentax Zoom Normal-Telephoto SMCP-DA* 50-135mm f/2.8 ED (IF) SDM Autofocus Lens for Digital SLR
Front & Rear Lens Caps
Lens Hood
1-Year Warranty
Accessories

Images

Pentax SMC DA* Series 50-135mm f/2.8 ED IF SDM Lens

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